build: enforce Java 1.6 as target and source type in build.xml
Remove gl10 support. libgdx-1.0 will only have gl20
desktop: deprecated desktop app constructos that takes optional gl20 support arg
Rename all GL10 occurances to GL20
Remove call to Gdx.graphics.isGL20Available() and comment out some GL10-isms
Refactor iOS support a bit to support new libgdx API. Need to redo this... My approach is ugly
Cleaned up API and javadocs for iOS
Merge pull request #66 from kamstrup/gdx-1.0

Update to libgdx 1.0 API, remove gl10, fix RoboVM backend